105543231540 has 48 divisors (see below), whose sum is σ = 295535278080. Its totient is φ = 28143506560.

The previous prime is 105543231467. The next prime is 105543231557. The reversal of 105543231540 is 45132345501.

It is a super-2 number, since 2×105543231540² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2164630 + ... + 2212850.

It is an arithmetic number, because the mean of its divisors is an integer number (6156984960).

Almost surely, 2^105543231540 is an apocalyptic number.

105543231540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105543231540 is an abundant number, since it is smaller than the sum of its proper divisors (189992046540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105543231540 is a wasteful number, since it uses less digits than its factorization.

105543231540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84712 (or 84710 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 105543231540 in words is "one hundred five billion, five hundred forty-three million, two hundred thirty-one thousand, five hundred forty".